Abbreviation with non-quoted attributes and > operator not extracted properly

[rzhao271]

Downstream: https://github.com/microsoft/vscode/issues/126780

Expected:

The following passes:

deepStrictEqual(extract('a[href=#]>p>a[href=#]'), result('a[href=#]>p>a[href=#]', 0));

Actual:

The extracted abbreviation is just a[href=#], starting from location 12.